Electric-lamp socket



sept. 11, 192s. 1,684,356

L. MAYER ELECTRIC LAMP SOCKET Filed NOV. 18, 1927 /N VEN TOR MQW i Patented Sept. 11, 1928.

Unirse sia'ras PATENT into MAYER, or BOSTON, MASSACHUSETTS, Assiettes` To HENRY conn COMPANY, OF

- BOSTON, MASSACHUSETTS.

ELECTRIC-LAMP SOCKET.

Apiilcation l'e'd November 18, Serial 234,204.

My invention relates to yelectric lamp sockets and particularly to such as are used in connection with automobile lights.

The object of my invention is to produce a switch located within the lamp socket for making and breaking the circuit.

Another object of my invention is to produce a Switch located inside the socket, but with the handle, by which it is operated, located outside the socketand means by which the handle may be removed from the switch by a simple movement of the handle.

The invention will be hereinafter considered in detail and specifically claimed. Reference will now be had to the drawing forming a part of this application, wherein there is illustrated a preferred embodiment of my invention, but it is understood that the elements thereof can be lvaried or changed as for Shape, size, or form, and various modifications thereof in detail and in the arrangement of the parts may be made by those skilled in the art, without departing from the spirit of the invention.

Fig. 1 is a Sectional view of a lamp socket showing the location of the switch.

Fig. 2 is a section on line 2-2.

Fig. 2A is the same view as Fig. 2, but with the switch shown in position when the electric current is broken.

Fig. 3 is a section on line 3 3.

Fig. 11 shows a view of a lamp socket, which is supplied with one electrical terminal; the body of the car acting as the otliei.

Fig. 5 shows a section of a screwuthreaded lamp that may be used instead of the lamp shown in Fig. 1.

In the drawings:

The casing 10 is provided at one end thereof with afbayonet joint 11 as shown in Fig. 1, or is provided with threads 12 as shown in Fig. 5 to receive a lamp 13 in the usual and well known manner.

The casing 10 is provided with a plug 14 of insulating material and held securely within said casing, and having a tubular member 15 fast therein and angularly arranged in respect to the axis of said casing. The said tubular member 15 is arranged to house the headed portions of plungers 16 and 17 between which is located a spring 18 normally tending to sepaiate them.

A terminal plug 19 of insulating material, secured on the right hand end of said casing 10 and preferably protruding therefrom, is arranged to receive the wires 2O and 21 which enter holes in metallic cylindrical members 22 and 23, one of which 22 has a spring pressed plungerl 24 mounted therein.

Interposed between the plugs 141 and 19 there is a rotatable switch member 25A comprising a rectangular block 26 of insulating material, provided with a flat opening 27 through which a metallic ribbon 28 is passed and is bent at its ends 29 and 30 as clearly shown in Figs. 2 and The very extremes ot -the ends 29 and 30 are slightly raisedA and out of contact with the block 26 for the purpose which will presently be explained.

The terminal plug 19 is provided with two insulated posts or stops 31 and 32, so arranged with respect to the ribbon 28 that when the block 26 is turned to the right by means of the handle or switch 33 the ribbon 28 will pass over the posts 31 and 32 without tlie block 26 being stopped. If however itis desired to remove the handle 33 from the block 26 the handleis turned to the left, the ends of the flat rib-bon 28 are stopped by the posts 31 and 32 holding'the block in place, and the handle is unscrewed and removed from the block 26.

From the above description it will be Seen that when the ribbon 28 is in contact withv 'the plungers 17 and 24 there is a complete electrical circuit. The circuit however is easily broken by turning the block 26 an angle of 90 degrees. The insulated sides of theblock are then in contact with the plun0- Vers and of course the circuit is broken. D

Having described my invention, what I claim is:

1. A. lamp socket of the class described comprising a casing having means at one end thereof to receive a lamp; a plug iXedly secured in the casing and having a tubular member secured therein, said member being arranged angularly in respect to the axis of said casing, a terminal plug lixedly secured in the other end thereof, and having a tubular member secured therein, a revolving switch member arranged between the said tubular members comprising a rectangular insulating block, having an opening therein, which carries a metallic contact member, whose twoends are bent against the two sides of the block, and means to rotate said block between the two tubular members to make and break the circuit.

2. A` lamp socket of the class described comprising a casing having means at one end thereof to receive a lamp; a plug fixedly secured in the easing and having a tubular member secured therein, said member being arranged angularly in respect to the axis of said easing, a terminal plug fxedly secured in the other end thereof, and' having a tubular member secured therein, a revolving switch member arranged between the 10 said tubular members comprising a rectanthan 90 degrees.

LEO MAYER. 

